Also worth noting to the claim

"The chance of a player playing for the Socceroos outside of A-League Academies past the age of 16 is ZERO..."

This is not the case, as in the case of Tom Rogic (arguably the most successful player of his generation, in terms of career achievment)

You'll not that he only joined Mariners the year he turned 20, before making it to Europe...before this, he had no involvement in an a-League (or NSL/AIS) academy set up.

So we can't exactly say it's zero 🤷
Probably more examples too